back rest / luggage rack from 81 cb 750 c to a 78 cb 750 f super sport?

[louissiuol]

anyone know about after market, back rest / backrest with luggage rack compatibility from various years of cb 750's , k or c or supersports for the 78 supersport cb 750?

[Re-run]

I cant say as I have heard of a universal model that fits a range of bikes. Usually they are made for a specific model.